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Finding the Fourth Proportional to 569.73, 785.97 and 438.51

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Solution

The fourth proportional to 569.73, 785.97 and 438.51 is: 604.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.73 : 785.97 = 438.51 : x
  2. Step 2: Convert to fraction form
    569.73/785.97 = 438.51/x
  3. Step 3: Cross multiply
    569.73x = 785.97 × 438.51
  4. Step 4: Simplify right side
    569.73x = 344,655.70
  5. Step 5: Solve for x
    x = 344,655.70/569.73
  6. Step 6: Final answer
    x = 604.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.